The rabbit's long ears, which can be more than 10 cm (4 in) long, are probably an adaptation for detecting predators. They have large, powerful hind legs. The two front paws have 5 toes, the extra called the dewclaw.
However, Moorish idol larvae spend a long time drifting through the open ocean before they mature, so regional populations donât remain isolated enough to develop particular traits. Because of its beauty and its identity as a quintessential reef fish, the Moorish idol is a very popular fish in the aquarium trade.
Scary Looking Deep Sea Fish Discovered in 'Midnight Zone' of Ocean. A New Anglerfish was discovered in the Gulf of Mexico. This newly discovered species of deep sea fish look like something that belongs in a horror movie. The mutant-looking marine species -- called ceratioid anglerfish -- were discovered in the northern Gulf of Mexico between 1,000-1,500 meters below the surface. The are is so deep there is no sunlight, with the bio-luminescence of some fish as the only light source.